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Finding the Fourth Proportional to 99,196.47, 136,903.68 and 61,476.39

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Solution

The fourth proportional to 99,196.47, 136,903.68 and 61,476.39 is: 84,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,196.47 : 136,903.68 = 61,476.39 : x
  2. Step 2: Convert to fraction form
    99,196.47/136,903.68 = 61,476.39/x
  3. Step 3: Cross multiply
    99,196.47x = 136,903.68 × 61,476.39
  4. Step 4: Simplify right side
    99,196.47x = 8,416,344,024.12
  5. Step 5: Solve for x
    x = 8,416,344,024.12/99,196.47
  6. Step 6: Final answer
    x = 84,845.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.