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Finding the Fourth Proportional to 98,326.44, 147,489.80 and 42,130.13

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Solution

The fourth proportional to 98,326.44, 147,489.80 and 42,130.13 is: 63,195.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,326.44 : 147,489.80 = 42,130.13 : x
  2. Step 2: Convert to fraction form
    98,326.44/147,489.80 = 42,130.13/x
  3. Step 3: Cross multiply
    98,326.44x = 147,489.80 × 42,130.13
  4. Step 4: Simplify right side
    98,326.44x = 6,213,763,499.57
  5. Step 5: Solve for x
    x = 6,213,763,499.57/98,326.44
  6. Step 6: Final answer
    x = 63,195.25

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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.