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Finding the Fourth Proportional to 484,995.60, 727,442.10 and 130,045.50

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Solution

The fourth proportional to 484,995.60, 727,442.10 and 130,045.50 is: 195,054.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,995.60 : 727,442.10 = 130,045.50 : x
  2. Step 2: Convert to fraction form
    484,995.60/727,442.10 = 130,045.50/x
  3. Step 3: Cross multiply
    484,995.60x = 727,442.10 × 130,045.50
  4. Step 4: Simplify right side
    484,995.60x = 94,600,571,615.55
  5. Step 5: Solve for x
    x = 94,600,571,615.55/484,995.60
  6. Step 6: Final answer
    x = 195,054.49

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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.