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Finding the Fourth Proportional to 132,800.32, 183,259.10 and 72,369.68

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Solution

The fourth proportional to 132,800.32, 183,259.10 and 72,369.68 is: 99,867.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,800.32 : 183,259.10 = 72,369.68 : x
  2. Step 2: Convert to fraction form
    132,800.32/183,259.10 = 72,369.68/x
  3. Step 3: Cross multiply
    132,800.32x = 183,259.10 × 72,369.68
  4. Step 4: Simplify right side
    132,800.32x = 13,262,402,424.09
  5. Step 5: Solve for x
    x = 13,262,402,424.09/132,800.32
  6. Step 6: Final answer
    x = 99,867.25

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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.