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Finding the Fourth Proportional to 78,595.16, 117,881.04 and 28,663.52

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Solution

The fourth proportional to 78,595.16, 117,881.04 and 28,663.52 is: 42,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,595.16 : 117,881.04 = 28,663.52 : x
  2. Step 2: Convert to fraction form
    78,595.16/117,881.04 = 28,663.52/x
  3. Step 3: Cross multiply
    78,595.16x = 117,881.04 × 28,663.52
  4. Step 4: Simplify right side
    78,595.16x = 3,378,885,547.66
  5. Step 5: Solve for x
    x = 3,378,885,547.66/78,595.16
  6. Step 6: Final answer
    x = 42,991.01

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