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Finding the Fourth Proportional to 292,125.93, 438,188.89 and 70,509.93

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Solution

The fourth proportional to 292,125.93, 438,188.89 and 70,509.93 is: 105,764.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,125.93 : 438,188.89 = 70,509.93 : x
  2. Step 2: Convert to fraction form
    292,125.93/438,188.89 = 70,509.93/x
  3. Step 3: Cross multiply
    292,125.93x = 438,188.89 × 70,509.93
  4. Step 4: Simplify right side
    292,125.93x = 30,896,666,273.40
  5. Step 5: Solve for x
    x = 30,896,666,273.40/292,125.93
  6. Step 6: Final answer
    x = 105,764.89

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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.