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Finding the Fourth Proportional to 89,925.98, 134,888.74 and 84,445.28

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Solution

The fourth proportional to 89,925.98, 134,888.74 and 84,445.28 is: 126,667.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,925.98 : 134,888.74 = 84,445.28 : x
  2. Step 2: Convert to fraction form
    89,925.98/134,888.74 = 84,445.28/x
  3. Step 3: Cross multiply
    89,925.98x = 134,888.74 × 84,445.28
  4. Step 4: Simplify right side
    89,925.98x = 11,390,716,532.59
  5. Step 5: Solve for x
    x = 11,390,716,532.59/89,925.98
  6. Step 6: Final answer
    x = 126,667.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.