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Finding the Fourth Proportional to 364,266.60, 546,140.70 and 139,540.20

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Solution

The fourth proportional to 364,266.60, 546,140.70 and 139,540.20 is: 209,211.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,266.60 : 546,140.70 = 139,540.20 : x
  2. Step 2: Convert to fraction form
    364,266.60/546,140.70 = 139,540.20/x
  3. Step 3: Cross multiply
    364,266.60x = 546,140.70 × 139,540.20
  4. Step 4: Simplify right side
    364,266.60x = 76,208,582,506.14
  5. Step 5: Solve for x
    x = 76,208,582,506.14/364,266.60
  6. Step 6: Final answer
    x = 209,211.01

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1.5x scale

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.