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Finding the Fourth Proportional to 208,034.60, 312,051.90 and 124,053.80

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Solution

The fourth proportional to 208,034.60, 312,051.90 and 124,053.80 is: 186,080.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,034.60 : 312,051.90 = 124,053.80 : x
  2. Step 2: Convert to fraction form
    208,034.60/312,051.90 = 124,053.80/x
  3. Step 3: Cross multiply
    208,034.60x = 312,051.90 × 124,053.80
  4. Step 4: Simplify right side
    208,034.60x = 38,711,223,992.22
  5. Step 5: Solve for x
    x = 38,711,223,992.22/208,034.60
  6. Step 6: Final answer
    x = 186,080.70

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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.