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Finding the Fourth Proportional to 152,377.61, 227,639.74 and 98,631.71

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Solution

The fourth proportional to 152,377.61, 227,639.74 and 98,631.71 is: 147,347.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,377.61 : 227,639.74 = 98,631.71 : x
  2. Step 2: Convert to fraction form
    152,377.61/227,639.74 = 98,631.71/x
  3. Step 3: Cross multiply
    152,377.61x = 227,639.74 × 98,631.71
  4. Step 4: Simplify right side
    152,377.61x = 22,452,496,820.16
  5. Step 5: Solve for x
    x = 22,452,496,820.16/152,377.61
  6. Step 6: Final answer
    x = 147,347.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.