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Finding the Fourth Proportional to 118,335.87, 163,210.95 and 75,898.35

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Solution

The fourth proportional to 118,335.87, 163,210.95 and 75,898.35 is: 104,680.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,335.87 : 163,210.95 = 75,898.35 : x
  2. Step 2: Convert to fraction form
    118,335.87/163,210.95 = 75,898.35/x
  3. Step 3: Cross multiply
    118,335.87x = 163,210.95 × 75,898.35
  4. Step 4: Simplify right side
    118,335.87x = 12,387,441,806.93
  5. Step 5: Solve for x
    x = 12,387,441,806.93/118,335.87
  6. Step 6: Final answer
    x = 104,680.36

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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.