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Finding the Fourth Proportional to 104,059.57, 143,602.65 and 56,312.91

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Solution

The fourth proportional to 104,059.57, 143,602.65 and 56,312.91 is: 77,712.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,059.57 : 143,602.65 = 56,312.91 : x
  2. Step 2: Convert to fraction form
    104,059.57/143,602.65 = 56,312.91/x
  3. Step 3: Cross multiply
    104,059.57x = 143,602.65 × 56,312.91
  4. Step 4: Simplify right side
    104,059.57x = 8,086,683,350.71
  5. Step 5: Solve for x
    x = 8,086,683,350.71/104,059.57
  6. Step 6: Final answer
    x = 77,712.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.