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Finding the Fourth Proportional to 98,557.30, 147,908.85 and 65,266.30

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Solution

The fourth proportional to 98,557.30, 147,908.85 and 65,266.30 is: 97,947.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,557.30 : 147,908.85 = 65,266.30 : x
  2. Step 2: Convert to fraction form
    98,557.30/147,908.85 = 65,266.30/x
  3. Step 3: Cross multiply
    98,557.30x = 147,908.85 × 65,266.30
  4. Step 4: Simplify right side
    98,557.30x = 9,653,463,376.76
  5. Step 5: Solve for x
    x = 9,653,463,376.76/98,557.30
  6. Step 6: Final answer
    x = 97,947.73

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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.