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Finding the Fourth Proportional to 72,765.48, 109,206.68 and 37,715.16

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Solution

The fourth proportional to 72,765.48, 109,206.68 and 37,715.16 is: 56,603.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,765.48 : 109,206.68 = 37,715.16 : x
  2. Step 2: Convert to fraction form
    72,765.48/109,206.68 = 37,715.16/x
  3. Step 3: Cross multiply
    72,765.48x = 109,206.68 × 37,715.16
  4. Step 4: Simplify right side
    72,765.48x = 4,118,747,220.69
  5. Step 5: Solve for x
    x = 4,118,747,220.69/72,765.48
  6. Step 6: Final answer
    x = 56,603.04

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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.