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Finding the Fourth Proportional to 98,416.86, 135,880.47 and 60,746.46

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Solution

The fourth proportional to 98,416.86, 135,880.47 and 60,746.46 is: 83,870.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,416.86 : 135,880.47 = 60,746.46 : x
  2. Step 2: Convert to fraction form
    98,416.86/135,880.47 = 60,746.46/x
  3. Step 3: Cross multiply
    98,416.86x = 135,880.47 × 60,746.46
  4. Step 4: Simplify right side
    98,416.86x = 8,254,257,535.64
  5. Step 5: Solve for x
    x = 8,254,257,535.64/98,416.86
  6. Step 6: Final answer
    x = 83,870.36

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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.