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Finding the Fourth Proportional to 122,185.72, 183,307.74 and 43,306.84

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Solution

The fourth proportional to 122,185.72, 183,307.74 and 43,306.84 is: 64,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,185.72 : 183,307.74 = 43,306.84 : x
  2. Step 2: Convert to fraction form
    122,185.72/183,307.74 = 43,306.84/x
  3. Step 3: Cross multiply
    122,185.72x = 183,307.74 × 43,306.84
  4. Step 4: Simplify right side
    122,185.72x = 7,938,478,966.94
  5. Step 5: Solve for x
    x = 7,938,478,966.94/122,185.72
  6. Step 6: Final answer
    x = 64,970.60

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1.5x scale

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.