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Finding the Fourth Proportional to 88,698.40, 133,047.60 and 71,202.40

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Solution

The fourth proportional to 88,698.40, 133,047.60 and 71,202.40 is: 106,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,698.40 : 133,047.60 = 71,202.40 : x
  2. Step 2: Convert to fraction form
    88,698.40/133,047.60 = 71,202.40/x
  3. Step 3: Cross multiply
    88,698.40x = 133,047.60 × 71,202.40
  4. Step 4: Simplify right side
    88,698.40x = 9,473,308,434.24
  5. Step 5: Solve for x
    x = 9,473,308,434.24/88,698.40
  6. Step 6: Final answer
    x = 106,803.60

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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.