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Finding the Fourth Proportional to 315,783.63, 435,784.46 and 172,543.66

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Solution

The fourth proportional to 315,783.63, 435,784.46 and 172,543.66 is: 238,111.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,783.63 : 435,784.46 = 172,543.66 : x
  2. Step 2: Convert to fraction form
    315,783.63/435,784.46 = 172,543.66/x
  3. Step 3: Cross multiply
    315,783.63x = 435,784.46 × 172,543.66
  4. Step 4: Simplify right side
    315,783.63x = 75,191,843,747.34
  5. Step 5: Solve for x
    x = 75,191,843,747.34/315,783.63
  6. Step 6: Final answer
    x = 238,111.91

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