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Finding the Fourth Proportional to 292,607.10, 439,056.45 and 166,344.30

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Solution

The fourth proportional to 292,607.10, 439,056.45 and 166,344.30 is: 249,599.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,607.10 : 439,056.45 = 166,344.30 : x
  2. Step 2: Convert to fraction form
    292,607.10/439,056.45 = 166,344.30/x
  3. Step 3: Cross multiply
    292,607.10x = 439,056.45 × 166,344.30
  4. Step 4: Simplify right side
    292,607.10x = 73,034,537,835.74
  5. Step 5: Solve for x
    x = 73,034,537,835.74/292,607.10
  6. Step 6: Final answer
    x = 249,599.34

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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.