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Finding the Fourth Proportional to 560,496.88, 840,878.78 and 181,417.68

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Solution

The fourth proportional to 560,496.88, 840,878.78 and 181,417.68 is: 272,169.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,496.88 : 840,878.78 = 181,417.68 : x
  2. Step 2: Convert to fraction form
    560,496.88/840,878.78 = 181,417.68/x
  3. Step 3: Cross multiply
    560,496.88x = 840,878.78 × 181,417.68
  4. Step 4: Simplify right side
    560,496.88x = 152,550,277,882.38
  5. Step 5: Solve for x
    x = 152,550,277,882.38/560,496.88
  6. Step 6: Final answer
    x = 272,169.72

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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.