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Finding the Fourth Proportional to 88,970.40, 133,455.60 and 84,596.40

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Solution

The fourth proportional to 88,970.40, 133,455.60 and 84,596.40 is: 126,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,970.40 : 133,455.60 = 84,596.40 : x
  2. Step 2: Convert to fraction form
    88,970.40/133,455.60 = 84,596.40/x
  3. Step 3: Cross multiply
    88,970.40x = 133,455.60 × 84,596.40
  4. Step 4: Simplify right side
    88,970.40x = 11,289,863,319.84
  5. Step 5: Solve for x
    x = 11,289,863,319.84/88,970.40
  6. Step 6: Final answer
    x = 126,894.60

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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.