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Finding the Fourth Proportional to 372,545.06, 514,097.91 and 211,390.52

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Solution

The fourth proportional to 372,545.06, 514,097.91 and 211,390.52 is: 291,710.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,545.06 : 514,097.91 = 211,390.52 : x
  2. Step 2: Convert to fraction form
    372,545.06/514,097.91 = 211,390.52/x
  3. Step 3: Cross multiply
    372,545.06x = 514,097.91 × 211,390.52
  4. Step 4: Simplify right side
    372,545.06x = 108,675,421,955.32
  5. Step 5: Solve for x
    x = 108,675,421,955.32/372,545.06
  6. Step 6: Final answer
    x = 291,710.82

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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.