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Finding the Fourth Proportional to 152,562.48, 210,530.52 and 85,490.16

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Solution

The fourth proportional to 152,562.48, 210,530.52 and 85,490.16 is: 117,973.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,562.48 : 210,530.52 = 85,490.16 : x
  2. Step 2: Convert to fraction form
    152,562.48/210,530.52 = 85,490.16/x
  3. Step 3: Cross multiply
    152,562.48x = 210,530.52 × 85,490.16
  4. Step 4: Simplify right side
    152,562.48x = 17,998,287,839.68
  5. Step 5: Solve for x
    x = 17,998,287,839.68/152,562.48
  6. Step 6: Final answer
    x = 117,973.23

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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.