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Finding the Fourth Proportional to 576,748.60, 865,187.70 and 177,386.20

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Solution

The fourth proportional to 576,748.60, 865,187.70 and 177,386.20 is: 266,099.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,748.60 : 865,187.70 = 177,386.20 : x
  2. Step 2: Convert to fraction form
    576,748.60/865,187.70 = 177,386.20/x
  3. Step 3: Cross multiply
    576,748.60x = 865,187.70 × 177,386.20
  4. Step 4: Simplify right side
    576,748.60x = 153,472,358,389.74
  5. Step 5: Solve for x
    x = 153,472,358,389.74/576,748.60
  6. Step 6: Final answer
    x = 266,099.23

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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.