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Finding the Fourth Proportional to 366,931.80, 549,960.30 and 153,699.30

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Solution

The fourth proportional to 366,931.80, 549,960.30 and 153,699.30 is: 230,365.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,931.80 : 549,960.30 = 153,699.30 : x
  2. Step 2: Convert to fraction form
    366,931.80/549,960.30 = 153,699.30/x
  3. Step 3: Cross multiply
    366,931.80x = 549,960.30 × 153,699.30
  4. Step 4: Simplify right side
    366,931.80x = 84,528,513,137.79
  5. Step 5: Solve for x
    x = 84,528,513,137.79/366,931.80
  6. Step 6: Final answer
    x = 230,365.73

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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.