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Finding the Fourth Proportional to 153,290.78, 229,935.74 and 48,117.62

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Solution

The fourth proportional to 153,290.78, 229,935.74 and 48,117.62 is: 72,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,290.78 : 229,935.74 = 48,117.62 : x
  2. Step 2: Convert to fraction form
    153,290.78/229,935.74 = 48,117.62/x
  3. Step 3: Cross multiply
    153,290.78x = 229,935.74 × 48,117.62
  4. Step 4: Simplify right side
    153,290.78x = 11,063,960,561.74
  5. Step 5: Solve for x
    x = 11,063,960,561.74/153,290.78
  6. Step 6: Final answer
    x = 72,176.30

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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.