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Finding the Fourth Proportional to 98,574.56, 147,818.10 and 61,133.12

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Solution

The fourth proportional to 98,574.56, 147,818.10 and 61,133.12 is: 91,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,574.56 : 147,818.10 = 61,133.12 : x
  2. Step 2: Convert to fraction form
    98,574.56/147,818.10 = 61,133.12/x
  3. Step 3: Cross multiply
    98,574.56x = 147,818.10 × 61,133.12
  4. Step 4: Simplify right side
    98,574.56x = 9,036,581,645.47
  5. Step 5: Solve for x
    x = 9,036,581,645.47/98,574.56
  6. Step 6: Final answer
    x = 91,672.55

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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.