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Finding the Fourth Proportional to 91,316.32, 136,866.48 and 44,461.60

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Solution

The fourth proportional to 91,316.32, 136,866.48 and 44,461.60 is: 66,639.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,316.32 : 136,866.48 = 44,461.60 : x
  2. Step 2: Convert to fraction form
    91,316.32/136,866.48 = 44,461.60/x
  3. Step 3: Cross multiply
    91,316.32x = 136,866.48 × 44,461.60
  4. Step 4: Simplify right side
    91,316.32x = 6,085,302,687.17
  5. Step 5: Solve for x
    x = 6,085,302,687.17/91,316.32
  6. Step 6: Final answer
    x = 66,639.82

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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.