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Finding the Fourth Proportional to 116,692.60, 175,038.90 and 91,809.40

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Solution

The fourth proportional to 116,692.60, 175,038.90 and 91,809.40 is: 137,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,692.60 : 175,038.90 = 91,809.40 : x
  2. Step 2: Convert to fraction form
    116,692.60/175,038.90 = 91,809.40/x
  3. Step 3: Cross multiply
    116,692.60x = 175,038.90 × 91,809.40
  4. Step 4: Simplify right side
    116,692.60x = 16,070,216,385.66
  5. Step 5: Solve for x
    x = 16,070,216,385.66/116,692.60
  6. Step 6: Final answer
    x = 137,714.10

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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.