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Finding the Fourth Proportional to 96,894.40, 145,341.60 and 91,710.40

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Solution

The fourth proportional to 96,894.40, 145,341.60 and 91,710.40 is: 137,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,894.40 : 145,341.60 = 91,710.40 : x
  2. Step 2: Convert to fraction form
    96,894.40/145,341.60 = 91,710.40/x
  3. Step 3: Cross multiply
    96,894.40x = 145,341.60 × 91,710.40
  4. Step 4: Simplify right side
    96,894.40x = 13,329,336,272.64
  5. Step 5: Solve for x
    x = 13,329,336,272.64/96,894.40
  6. Step 6: Final answer
    x = 137,565.60

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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.