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Finding the Fourth Proportional to 298,935,152.40, 448,473,587.40 and 153,391,177.20

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Solution

The fourth proportional to 298,935,152.40, 448,473,587.40 and 153,391,177.20 is: 230,123,125.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,935,152.40 : 448,473,587.40 = 153,391,177.20 : x
  2. Step 2: Convert to fraction form
    298,935,152.40/448,473,587.40 = 153,391,177.20/x
  3. Step 3: Cross multiply
    298,935,152.40x = 448,473,587.40 × 153,391,177.20
  4. Step 4: Simplify right side
    298,935,152.40x = 68,791,891,514,393,080
  5. Step 5: Solve for x
    x = 68,791,891,514,393,080/298,935,152.40
  6. Step 6: Final answer
    x = 230,123,125.24

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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.