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Finding the Fourth Proportional to 252,499.99, 348,451.20 and 139,322.74

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Solution

The fourth proportional to 252,499.99, 348,451.20 and 139,322.74 is: 192,266.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,499.99 : 348,451.20 = 139,322.74 : x
  2. Step 2: Convert to fraction form
    252,499.99/348,451.20 = 139,322.74/x
  3. Step 3: Cross multiply
    252,499.99x = 348,451.20 × 139,322.74
  4. Step 4: Simplify right side
    252,499.99x = 48,547,175,940.29
  5. Step 5: Solve for x
    x = 48,547,175,940.29/252,499.99
  6. Step 6: Final answer
    x = 192,266.05

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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.