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Finding the Fourth Proportional to 357,166.40, 535,312.20 and 157,274.60

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Solution

The fourth proportional to 357,166.40, 535,312.20 and 157,274.60 is: 235,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,166.40 : 535,312.20 = 157,274.60 : x
  2. Step 2: Convert to fraction form
    357,166.40/535,312.20 = 157,274.60/x
  3. Step 3: Cross multiply
    357,166.40x = 535,312.20 × 157,274.60
  4. Step 4: Simplify right side
    357,166.40x = 84,191,012,130.12
  5. Step 5: Solve for x
    x = 84,191,012,130.12/357,166.40
  6. Step 6: Final answer
    x = 235,719.30

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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.