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Finding the Fourth Proportional to 252,221.94, 348,068.70 and 139,048.74

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Solution

The fourth proportional to 252,221.94, 348,068.70 and 139,048.74 is: 191,888.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,221.94 : 348,068.70 = 139,048.74 : x
  2. Step 2: Convert to fraction form
    252,221.94/348,068.70 = 139,048.74/x
  3. Step 3: Cross multiply
    252,221.94x = 348,068.70 × 139,048.74
  4. Step 4: Simplify right side
    252,221.94x = 48,398,514,168.44
  5. Step 5: Solve for x
    x = 48,398,514,168.44/252,221.94
  6. Step 6: Final answer
    x = 191,888.60

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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.