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Finding the Fourth Proportional to 235,862.40, 353,210.40 and 156,547.20

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Solution

The fourth proportional to 235,862.40, 353,210.40 and 156,547.20 is: 234,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,862.40 : 353,210.40 = 156,547.20 : x
  2. Step 2: Convert to fraction form
    235,862.40/353,210.40 = 156,547.20/x
  3. Step 3: Cross multiply
    235,862.40x = 353,210.40 × 156,547.20
  4. Step 4: Simplify right side
    235,862.40x = 55,294,099,130.88
  5. Step 5: Solve for x
    x = 55,294,099,130.88/235,862.40
  6. Step 6: Final answer
    x = 234,433.72

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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.