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Finding the Fourth Proportional to 452,743.20, 679,114.80 and 120,319.20

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Solution

The fourth proportional to 452,743.20, 679,114.80 and 120,319.20 is: 180,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,743.20 : 679,114.80 = 120,319.20 : x
  2. Step 2: Convert to fraction form
    452,743.20/679,114.80 = 120,319.20/x
  3. Step 3: Cross multiply
    452,743.20x = 679,114.80 × 120,319.20
  4. Step 4: Simplify right side
    452,743.20x = 81,710,549,444.16
  5. Step 5: Solve for x
    x = 81,710,549,444.16/452,743.20
  6. Step 6: Final answer
    x = 180,478.80

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