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Finding the Fourth Proportional to 367,657.60, 551,486.40 and 157,316.80

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Solution

The fourth proportional to 367,657.60, 551,486.40 and 157,316.80 is: 235,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,657.60 : 551,486.40 = 157,316.80 : x
  2. Step 2: Convert to fraction form
    367,657.60/551,486.40 = 157,316.80/x
  3. Step 3: Cross multiply
    367,657.60x = 551,486.40 × 157,316.80
  4. Step 4: Simplify right side
    367,657.60x = 86,758,075,691.52
  5. Step 5: Solve for x
    x = 86,758,075,691.52/367,657.60
  6. Step 6: Final answer
    x = 235,975.20

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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.