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Finding the Fourth Proportional to 64,753.40, 97,130.10 and 38,444.60

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Solution

The fourth proportional to 64,753.40, 97,130.10 and 38,444.60 is: 57,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,753.40 : 97,130.10 = 38,444.60 : x
  2. Step 2: Convert to fraction form
    64,753.40/97,130.10 = 38,444.60/x
  3. Step 3: Cross multiply
    64,753.40x = 97,130.10 × 38,444.60
  4. Step 4: Simplify right side
    64,753.40x = 3,734,127,842.46
  5. Step 5: Solve for x
    x = 3,734,127,842.46/64,753.40
  6. Step 6: Final answer
    x = 57,666.90

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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.