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Finding the Fourth Proportional to 404,810.60, 607,215.90 and 168,031.40

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Solution

The fourth proportional to 404,810.60, 607,215.90 and 168,031.40 is: 252,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,810.60 : 607,215.90 = 168,031.40 : x
  2. Step 2: Convert to fraction form
    404,810.60/607,215.90 = 168,031.40/x
  3. Step 3: Cross multiply
    404,810.60x = 607,215.90 × 168,031.40
  4. Step 4: Simplify right side
    404,810.60x = 102,031,337,779.26
  5. Step 5: Solve for x
    x = 102,031,337,779.26/404,810.60
  6. Step 6: Final answer
    x = 252,047.10

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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.