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Finding the Fourth Proportional to 78,345.32, 108,113.52 and 42,534.52

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Solution

The fourth proportional to 78,345.32, 108,113.52 and 42,534.52 is: 58,696.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,345.32 : 108,113.52 = 42,534.52 : x
  2. Step 2: Convert to fraction form
    78,345.32/108,113.52 = 42,534.52/x
  3. Step 3: Cross multiply
    78,345.32x = 108,113.52 × 42,534.52
  4. Step 4: Simplify right side
    78,345.32x = 4,598,556,678.71
  5. Step 5: Solve for x
    x = 4,598,556,678.71/78,345.32
  6. Step 6: Final answer
    x = 58,696.00

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