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Finding the Fourth Proportional to 310,875.93, 429,008.79 and 176,739.93

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Solution

The fourth proportional to 310,875.93, 429,008.79 and 176,739.93 is: 243,901.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,875.93 : 429,008.79 = 176,739.93 : x
  2. Step 2: Convert to fraction form
    310,875.93/429,008.79 = 176,739.93/x
  3. Step 3: Cross multiply
    310,875.93x = 429,008.79 × 176,739.93
  4. Step 4: Simplify right side
    310,875.93x = 75,822,983,513.98
  5. Step 5: Solve for x
    x = 75,822,983,513.98/310,875.93
  6. Step 6: Final answer
    x = 243,901.11

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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.