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Finding the Fourth Proportional to 348,314.38, 522,478.05 and 99,002.86

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Solution

The fourth proportional to 348,314.38, 522,478.05 and 99,002.86 is: 148,506.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,314.38 : 522,478.05 = 99,002.86 : x
  2. Step 2: Convert to fraction form
    348,314.38/522,478.05 = 99,002.86/x
  3. Step 3: Cross multiply
    348,314.38x = 522,478.05 × 99,002.86
  4. Step 4: Simplify right side
    348,314.38x = 51,726,818,129.82
  5. Step 5: Solve for x
    x = 51,726,818,129.82/348,314.38
  6. Step 6: Final answer
    x = 148,506.13

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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.