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Finding the Fourth Proportional to 121,597.58, 167,807.48 and 76,277.47

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Solution

The fourth proportional to 121,597.58, 167,807.48 and 76,277.47 is: 105,264.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,597.58 : 167,807.48 = 76,277.47 : x
  2. Step 2: Convert to fraction form
    121,597.58/167,807.48 = 76,277.47/x
  3. Step 3: Cross multiply
    121,597.58x = 167,807.48 × 76,277.47
  4. Step 4: Simplify right side
    121,597.58x = 12,799,930,021.48
  5. Step 5: Solve for x
    x = 12,799,930,021.48/121,597.58
  6. Step 6: Final answer
    x = 105,264.68

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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.