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Finding the Fourth Proportional to 252,578.01, 348,555.93 and 139,400.76

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Solution

The fourth proportional to 252,578.01, 348,555.93 and 139,400.76 is: 192,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,578.01 : 348,555.93 = 139,400.76 : x
  2. Step 2: Convert to fraction form
    252,578.01/348,555.93 = 139,400.76/x
  3. Step 3: Cross multiply
    252,578.01x = 348,555.93 × 139,400.76
  4. Step 4: Simplify right side
    252,578.01x = 48,588,960,150.23
  5. Step 5: Solve for x
    x = 48,588,960,150.23/252,578.01
  6. Step 6: Final answer
    x = 192,372.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.