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Finding the Fourth Proportional to 219,903,331.60, 329,854,997.40 and 83,571,000.40

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Solution

The fourth proportional to 219,903,331.60, 329,854,997.40 and 83,571,000.40 is: 125,356,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,903,331.60 : 329,854,997.40 = 83,571,000.40 : x
  2. Step 2: Convert to fraction form
    219,903,331.60/329,854,997.40 = 83,571,000.40/x
  3. Step 3: Cross multiply
    219,903,331.60x = 329,854,997.40 × 83,571,000.40
  4. Step 4: Simplify right side
    219,903,331.60x = 27,566,312,119,657,400
  5. Step 5: Solve for x
    x = 27,566,312,119,657,400/219,903,331.60
  6. Step 6: Final answer
    x = 125,356,500.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.