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Finding the Fourth Proportional to 125,102.78, 187,666.47 and 36,332.45

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Solution

The fourth proportional to 125,102.78, 187,666.47 and 36,332.45 is: 54,502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,102.78 : 187,666.47 = 36,332.45 : x
  2. Step 2: Convert to fraction form
    125,102.78/187,666.47 = 36,332.45/x
  3. Step 3: Cross multiply
    125,102.78x = 187,666.47 × 36,332.45
  4. Step 4: Simplify right side
    125,102.78x = 6,818,382,403.37
  5. Step 5: Solve for x
    x = 6,818,382,403.37/125,102.78
  6. Step 6: Final answer
    x = 54,502.25

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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.