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Finding the Fourth Proportional to 98,486.06, 147,775.22 and 48,538.92

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Solution

The fourth proportional to 98,486.06, 147,775.22 and 48,538.92 is: 72,831.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,486.06 : 147,775.22 = 48,538.92 : x
  2. Step 2: Convert to fraction form
    98,486.06/147,775.22 = 48,538.92/x
  3. Step 3: Cross multiply
    98,486.06x = 147,775.22 × 48,538.92
  4. Step 4: Simplify right side
    98,486.06x = 7,172,849,938.53
  5. Step 5: Solve for x
    x = 7,172,849,938.53/98,486.06
  6. Step 6: Final answer
    x = 72,831.12

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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.