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Finding the Fourth Proportional to 98,948.42, 136,510.98 and 73,168.82

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Solution

The fourth proportional to 98,948.42, 136,510.98 and 73,168.82 is: 100,944.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,948.42 : 136,510.98 = 73,168.82 : x
  2. Step 2: Convert to fraction form
    98,948.42/136,510.98 = 73,168.82/x
  3. Step 3: Cross multiply
    98,948.42x = 136,510.98 × 73,168.82
  4. Step 4: Simplify right side
    98,948.42x = 9,988,347,323.64
  5. Step 5: Solve for x
    x = 9,988,347,323.64/98,948.42
  6. Step 6: Final answer
    x = 100,944.99

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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.