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Finding the Fourth Proportional to 118,792.12, 163,870.95 and 73,455.61

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Solution

The fourth proportional to 118,792.12, 163,870.95 and 73,455.61 is: 101,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,792.12 : 163,870.95 = 73,455.61 : x
  2. Step 2: Convert to fraction form
    118,792.12/163,870.95 = 73,455.61/x
  3. Step 3: Cross multiply
    118,792.12x = 163,870.95 × 73,455.61
  4. Step 4: Simplify right side
    118,792.12x = 12,037,240,593.53
  5. Step 5: Solve for x
    x = 12,037,240,593.53/118,792.12
  6. Step 6: Final answer
    x = 101,330.30

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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.