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Finding the Fourth Proportional to 78,222.33, 107,946.14 and 44,237.50

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Solution

The fourth proportional to 78,222.33, 107,946.14 and 44,237.50 is: 61,047.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,222.33 : 107,946.14 = 44,237.50 : x
  2. Step 2: Convert to fraction form
    78,222.33/107,946.14 = 44,237.50/x
  3. Step 3: Cross multiply
    78,222.33x = 107,946.14 × 44,237.50
  4. Step 4: Simplify right side
    78,222.33x = 4,775,266,877.20
  5. Step 5: Solve for x
    x = 4,775,266,877.20/78,222.33
  6. Step 6: Final answer
    x = 61,047.36

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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.