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Finding the Fourth Proportional to 124,637.59, 186,981.03 and 45,752.50

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Solution

The fourth proportional to 124,637.59, 186,981.03 and 45,752.50 is: 68,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,637.59 : 186,981.03 = 45,752.50 : x
  2. Step 2: Convert to fraction form
    124,637.59/186,981.03 = 45,752.50/x
  3. Step 3: Cross multiply
    124,637.59x = 186,981.03 × 45,752.50
  4. Step 4: Simplify right side
    124,637.59x = 8,554,849,575.08
  5. Step 5: Solve for x
    x = 8,554,849,575.08/124,637.59
  6. Step 6: Final answer
    x = 68,637.80

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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.