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Finding the Fourth Proportional to 98,616.20, 147,827.10 and 48,655.40

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Solution

The fourth proportional to 98,616.20, 147,827.10 and 48,655.40 is: 72,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,616.20 : 147,827.10 = 48,655.40 : x
  2. Step 2: Convert to fraction form
    98,616.20/147,827.10 = 48,655.40/x
  3. Step 3: Cross multiply
    98,616.20x = 147,827.10 × 48,655.40
  4. Step 4: Simplify right side
    98,616.20x = 7,192,586,681.34
  5. Step 5: Solve for x
    x = 7,192,586,681.34/98,616.20
  6. Step 6: Final answer
    x = 72,935.14

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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.