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Finding the Fourth Proportional to 125,841.60, 188,762.40 and 116,218.80

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Solution

The fourth proportional to 125,841.60, 188,762.40 and 116,218.80 is: 174,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,841.60 : 188,762.40 = 116,218.80 : x
  2. Step 2: Convert to fraction form
    125,841.60/188,762.40 = 116,218.80/x
  3. Step 3: Cross multiply
    125,841.60x = 188,762.40 × 116,218.80
  4. Step 4: Simplify right side
    125,841.60x = 21,937,739,613.12
  5. Step 5: Solve for x
    x = 21,937,739,613.12/125,841.60
  6. Step 6: Final answer
    x = 174,328.20

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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.