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Finding the Fourth Proportional to 64,053.68, 88,430.97 and 42,572.56

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Solution

The fourth proportional to 64,053.68, 88,430.97 and 42,572.56 is: 58,774.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,053.68 : 88,430.97 = 42,572.56 : x
  2. Step 2: Convert to fraction form
    64,053.68/88,430.97 = 42,572.56/x
  3. Step 3: Cross multiply
    64,053.68x = 88,430.97 × 42,572.56
  4. Step 4: Simplify right side
    64,053.68x = 3,764,732,210.46
  5. Step 5: Solve for x
    x = 3,764,732,210.46/64,053.68
  6. Step 6: Final answer
    x = 58,774.64

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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.