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Finding the Fourth Proportional to 85,980.46, 118,663.95 and 48,254.68

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Solution

The fourth proportional to 85,980.46, 118,663.95 and 48,254.68 is: 66,597.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,980.46 : 118,663.95 = 48,254.68 : x
  2. Step 2: Convert to fraction form
    85,980.46/118,663.95 = 48,254.68/x
  3. Step 3: Cross multiply
    85,980.46x = 118,663.95 × 48,254.68
  4. Step 4: Simplify right side
    85,980.46x = 5,726,090,934.79
  5. Step 5: Solve for x
    x = 5,726,090,934.79/85,980.46
  6. Step 6: Final answer
    x = 66,597.58

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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.