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Finding the Fourth Proportional to 96,651.61, 133,386.50 and 53,639.21

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Solution

The fourth proportional to 96,651.61, 133,386.50 and 53,639.21 is: 74,026.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,651.61 : 133,386.50 = 53,639.21 : x
  2. Step 2: Convert to fraction form
    96,651.61/133,386.50 = 53,639.21/x
  3. Step 3: Cross multiply
    96,651.61x = 133,386.50 × 53,639.21
  4. Step 4: Simplify right side
    96,651.61x = 7,154,746,952.23
  5. Step 5: Solve for x
    x = 7,154,746,952.23/96,651.61
  6. Step 6: Final answer
    x = 74,026.16

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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.