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Finding the Fourth Proportional to 308,816.90, 463,155.62 and 156,860.08

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Solution

The fourth proportional to 308,816.90, 463,155.62 and 156,860.08 is: 235,254.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,816.90 : 463,155.62 = 156,860.08 : x
  2. Step 2: Convert to fraction form
    308,816.90/463,155.62 = 156,860.08/x
  3. Step 3: Cross multiply
    308,816.90x = 463,155.62 × 156,860.08
  4. Step 4: Simplify right side
    308,816.90x = 72,650,627,605.65
  5. Step 5: Solve for x
    x = 72,650,627,605.65/308,816.90
  6. Step 6: Final answer
    x = 235,254.70

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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.