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Finding the Fourth Proportional to 158,990.41, 238,486.98 and 46,672.47

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Solution

The fourth proportional to 158,990.41, 238,486.98 and 46,672.47 is: 70,009.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,990.41 : 238,486.98 = 46,672.47 : x
  2. Step 2: Convert to fraction form
    158,990.41/238,486.98 = 46,672.47/x
  3. Step 3: Cross multiply
    158,990.41x = 238,486.98 × 46,672.47
  4. Step 4: Simplify right side
    158,990.41x = 11,130,776,594.46
  5. Step 5: Solve for x
    x = 11,130,776,594.46/158,990.41
  6. Step 6: Final answer
    x = 70,009.11

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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.