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Finding the Fourth Proportional to 350,312.64, 525,542.76 and 113,636.84

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Solution

The fourth proportional to 350,312.64, 525,542.76 and 113,636.84 is: 170,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,312.64 : 525,542.76 = 113,636.84 : x
  2. Step 2: Convert to fraction form
    350,312.64/525,542.76 = 113,636.84/x
  3. Step 3: Cross multiply
    350,312.64x = 525,542.76 × 113,636.84
  4. Step 4: Simplify right side
    350,312.64x = 59,721,018,531.28
  5. Step 5: Solve for x
    x = 59,721,018,531.28/350,312.64
  6. Step 6: Final answer
    x = 170,479.20

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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.