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Finding the Fourth Proportional to 98,599.70, 136,059.71 and 58,315.16

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Solution

The fourth proportional to 98,599.70, 136,059.71 and 58,315.16 is: 80,470.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,599.70 : 136,059.71 = 58,315.16 : x
  2. Step 2: Convert to fraction form
    98,599.70/136,059.71 = 58,315.16/x
  3. Step 3: Cross multiply
    98,599.70x = 136,059.71 × 58,315.16
  4. Step 4: Simplify right side
    98,599.70x = 7,934,343,806.78
  5. Step 5: Solve for x
    x = 7,934,343,806.78/98,599.70
  6. Step 6: Final answer
    x = 80,470.26

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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.