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Finding the Fourth Proportional to 98,792.60, 136,360.14 and 61,045.52

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Solution

The fourth proportional to 98,792.60, 136,360.14 and 61,045.52 is: 84,259.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,792.60 : 136,360.14 = 61,045.52 : x
  2. Step 2: Convert to fraction form
    98,792.60/136,360.14 = 61,045.52/x
  3. Step 3: Cross multiply
    98,792.60x = 136,360.14 × 61,045.52
  4. Step 4: Simplify right side
    98,792.60x = 8,324,175,653.57
  5. Step 5: Solve for x
    x = 8,324,175,653.57/98,792.60
  6. Step 6: Final answer
    x = 84,259.10

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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.