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Finding the Fourth Proportional to 98,681.40, 148,022.10 and 88,313.40

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Solution

The fourth proportional to 98,681.40, 148,022.10 and 88,313.40 is: 132,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,681.40 : 148,022.10 = 88,313.40 : x
  2. Step 2: Convert to fraction form
    98,681.40/148,022.10 = 88,313.40/x
  3. Step 3: Cross multiply
    98,681.40x = 148,022.10 × 88,313.40
  4. Step 4: Simplify right side
    98,681.40x = 13,072,334,926.14
  5. Step 5: Solve for x
    x = 13,072,334,926.14/98,681.40
  6. Step 6: Final answer
    x = 132,470.10

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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.