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Finding the Fourth Proportional to 98,084.79, 147,187.13 and 64,900.71

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Solution

The fourth proportional to 98,084.79, 147,187.13 and 64,900.71 is: 97,390.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,084.79 : 147,187.13 = 64,900.71 : x
  2. Step 2: Convert to fraction form
    98,084.79/147,187.13 = 64,900.71/x
  3. Step 3: Cross multiply
    98,084.79x = 147,187.13 × 64,900.71
  4. Step 4: Simplify right side
    98,084.79x = 9,552,548,915.36
  5. Step 5: Solve for x
    x = 9,552,548,915.36/98,084.79
  6. Step 6: Final answer
    x = 97,390.73

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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.