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Finding the Fourth Proportional to 303,432.30, 455,148.45 and 93,042.90

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Solution

The fourth proportional to 303,432.30, 455,148.45 and 93,042.90 is: 139,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,432.30 : 455,148.45 = 93,042.90 : x
  2. Step 2: Convert to fraction form
    303,432.30/455,148.45 = 93,042.90/x
  3. Step 3: Cross multiply
    303,432.30x = 455,148.45 × 93,042.90
  4. Step 4: Simplify right side
    303,432.30x = 42,348,331,718.51
  5. Step 5: Solve for x
    x = 42,348,331,718.51/303,432.30
  6. Step 6: Final answer
    x = 139,564.35

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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.