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Finding the Fourth Proportional to 98,807.53, 148,239.06 and 39,684.73

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Solution

The fourth proportional to 98,807.53, 148,239.06 and 39,684.73 is: 59,538.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,807.53 : 148,239.06 = 39,684.73 : x
  2. Step 2: Convert to fraction form
    98,807.53/148,239.06 = 39,684.73/x
  3. Step 3: Cross multiply
    98,807.53x = 148,239.06 × 39,684.73
  4. Step 4: Simplify right side
    98,807.53x = 5,882,827,071.55
  5. Step 5: Solve for x
    x = 5,882,827,071.55/98,807.53
  6. Step 6: Final answer
    x = 59,538.25

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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.