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Finding the Fourth Proportional to 104,647.76, 144,412.86 and 56,901.12

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Solution

The fourth proportional to 104,647.76, 144,412.86 and 56,901.12 is: 78,522.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,647.76 : 144,412.86 = 56,901.12 : x
  2. Step 2: Convert to fraction form
    104,647.76/144,412.86 = 56,901.12/x
  3. Step 3: Cross multiply
    104,647.76x = 144,412.86 × 56,901.12
  4. Step 4: Simplify right side
    104,647.76x = 8,217,253,476.40
  5. Step 5: Solve for x
    x = 8,217,253,476.40/104,647.76
  6. Step 6: Final answer
    x = 78,522.98

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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.