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Finding the Fourth Proportional to 159,438,088.80, 238,731,980.40 and 159,438,088.80

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Solution

The fourth proportional to 159,438,088.80, 238,731,980.40 and 159,438,088.80 is: 238,731,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,438,088.80 : 238,731,980.40 = 159,438,088.80 : x
  2. Step 2: Convert to fraction form
    159,438,088.80/238,731,980.40 = 159,438,088.80/x
  3. Step 3: Cross multiply
    159,438,088.80x = 238,731,980.40 × 159,438,088.80
  4. Step 4: Simplify right side
    159,438,088.80x = 38,062,970,690,415,064
  5. Step 5: Solve for x
    x = 38,062,970,690,415,064/159,438,088.80
  6. Step 6: Final answer
    x = 238,731,980.40

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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.