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Finding the Fourth Proportional to 240,430.60, 360,645.90 and 236,931.40

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Solution

The fourth proportional to 240,430.60, 360,645.90 and 236,931.40 is: 355,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,430.60 : 360,645.90 = 236,931.40 : x
  2. Step 2: Convert to fraction form
    240,430.60/360,645.90 = 236,931.40/x
  3. Step 3: Cross multiply
    240,430.60x = 360,645.90 × 236,931.40
  4. Step 4: Simplify right side
    240,430.60x = 85,448,337,991.26
  5. Step 5: Solve for x
    x = 85,448,337,991.26/240,430.60
  6. Step 6: Final answer
    x = 355,397.10

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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.