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Finding the Fourth Proportional to 125,111.04, 187,500.54 and 65,988.48

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Solution

The fourth proportional to 125,111.04, 187,500.54 and 65,988.48 is: 98,895.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,111.04 : 187,500.54 = 65,988.48 : x
  2. Step 2: Convert to fraction form
    125,111.04/187,500.54 = 65,988.48/x
  3. Step 3: Cross multiply
    125,111.04x = 187,500.54 × 65,988.48
  4. Step 4: Simplify right side
    125,111.04x = 12,372,875,633.78
  5. Step 5: Solve for x
    x = 12,372,875,633.78/125,111.04
  6. Step 6: Final answer
    x = 98,895.15

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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.