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Finding the Fourth Proportional to 64,148.80, 88,528.16 and 35,854.40

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Solution

The fourth proportional to 64,148.80, 88,528.16 and 35,854.40 is: 49,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,148.80 : 88,528.16 = 35,854.40 : x
  2. Step 2: Convert to fraction form
    64,148.80/88,528.16 = 35,854.40/x
  3. Step 3: Cross multiply
    64,148.80x = 88,528.16 × 35,854.40
  4. Step 4: Simplify right side
    64,148.80x = 3,174,124,059.90
  5. Step 5: Solve for x
    x = 3,174,124,059.90/64,148.80
  6. Step 6: Final answer
    x = 49,480.65

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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.