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Finding the Fourth Proportional to 159,538.30, 239,307.45 and 97,330.30

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Solution

The fourth proportional to 159,538.30, 239,307.45 and 97,330.30 is: 145,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,538.30 : 239,307.45 = 97,330.30 : x
  2. Step 2: Convert to fraction form
    159,538.30/239,307.45 = 97,330.30/x
  3. Step 3: Cross multiply
    159,538.30x = 239,307.45 × 97,330.30
  4. Step 4: Simplify right side
    159,538.30x = 23,291,865,900.74
  5. Step 5: Solve for x
    x = 23,291,865,900.74/159,538.30
  6. Step 6: Final answer
    x = 145,995.45

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Similar ratio
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1.5x scale

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.