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Finding the Fourth Proportional to 475,698, 713,547 and 120,713.88

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Solution

The fourth proportional to 475,698, 713,547 and 120,713.88 is: 181,070.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,698 : 713,547 = 120,713.88 : x
  2. Step 2: Convert to fraction form
    475,698/713,547 = 120,713.88/x
  3. Step 3: Cross multiply
    475,698x = 713,547 × 120,713.88
  4. Step 4: Simplify right side
    475,698x = 86,135,026,932.36
  5. Step 5: Solve for x
    x = 86,135,026,932.36/475,698
  6. Step 6: Final answer
    x = 181,070.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.