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Finding the Fourth Proportional to 98,693.60, 148,040.40 and 73,810.40

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Solution

The fourth proportional to 98,693.60, 148,040.40 and 73,810.40 is: 110,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,693.60 : 148,040.40 = 73,810.40 : x
  2. Step 2: Convert to fraction form
    98,693.60/148,040.40 = 73,810.40/x
  3. Step 3: Cross multiply
    98,693.60x = 148,040.40 × 73,810.40
  4. Step 4: Simplify right side
    98,693.60x = 10,926,921,140.16
  5. Step 5: Solve for x
    x = 10,926,921,140.16/98,693.60
  6. Step 6: Final answer
    x = 110,715.60

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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.