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Finding the Fourth Proportional to 88,511.60, 133,026.60 and 77,106.80

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Solution

The fourth proportional to 88,511.60, 133,026.60 and 77,106.80 is: 115,886.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,511.60 : 133,026.60 = 77,106.80 : x
  2. Step 2: Convert to fraction form
    88,511.60/133,026.60 = 77,106.80/x
  3. Step 3: Cross multiply
    88,511.60x = 133,026.60 × 77,106.80
  4. Step 4: Simplify right side
    88,511.60x = 10,257,255,440.88
  5. Step 5: Solve for x
    x = 10,257,255,440.88/88,511.60
  6. Step 6: Final answer
    x = 115,886.00

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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.