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Finding the Fourth Proportional to 403,280.60, 604,920.90 and 166,501.40

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Solution

The fourth proportional to 403,280.60, 604,920.90 and 166,501.40 is: 249,752.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,280.60 : 604,920.90 = 166,501.40 : x
  2. Step 2: Convert to fraction form
    403,280.60/604,920.90 = 166,501.40/x
  3. Step 3: Cross multiply
    403,280.60x = 604,920.90 × 166,501.40
  4. Step 4: Simplify right side
    403,280.60x = 100,720,176,739.26
  5. Step 5: Solve for x
    x = 100,720,176,739.26/403,280.60
  6. Step 6: Final answer
    x = 249,752.10

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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.