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Finding the Fourth Proportional to 315,006.75, 472,510.14 and 93,390.75

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Solution

The fourth proportional to 315,006.75, 472,510.14 and 93,390.75 is: 140,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,006.75 : 472,510.14 = 93,390.75 : x
  2. Step 2: Convert to fraction form
    315,006.75/472,510.14 = 93,390.75/x
  3. Step 3: Cross multiply
    315,006.75x = 472,510.14 × 93,390.75
  4. Step 4: Simplify right side
    315,006.75x = 44,128,076,357.21
  5. Step 5: Solve for x
    x = 44,128,076,357.21/315,006.75
  6. Step 6: Final answer
    x = 140,086.13

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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.