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Finding the Fourth Proportional to 187,572.54, 258,886.98 and 106,992.30

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Solution

The fourth proportional to 187,572.54, 258,886.98 and 106,992.30 is: 147,670.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,572.54 : 258,886.98 = 106,992.30 : x
  2. Step 2: Convert to fraction form
    187,572.54/258,886.98 = 106,992.30/x
  3. Step 3: Cross multiply
    187,572.54x = 258,886.98 × 106,992.30
  4. Step 4: Simplify right side
    187,572.54x = 27,698,913,430.25
  5. Step 5: Solve for x
    x = 27,698,913,430.25/187,572.54
  6. Step 6: Final answer
    x = 147,670.41

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1.5x scale

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.