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Finding the Fourth Proportional to 376,869.60, 565,304.40 and 166,399.20

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Solution

The fourth proportional to 376,869.60, 565,304.40 and 166,399.20 is: 249,598.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,869.60 : 565,304.40 = 166,399.20 : x
  2. Step 2: Convert to fraction form
    376,869.60/565,304.40 = 166,399.20/x
  3. Step 3: Cross multiply
    376,869.60x = 565,304.40 × 166,399.20
  4. Step 4: Simplify right side
    376,869.60x = 94,066,199,916.48
  5. Step 5: Solve for x
    x = 94,066,199,916.48/376,869.60
  6. Step 6: Final answer
    x = 249,598.80

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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.