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Finding the Fourth Proportional to 144,068.47, 198,840.51 and 85,928.94

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Solution

The fourth proportional to 144,068.47, 198,840.51 and 85,928.94 is: 118,597.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,068.47 : 198,840.51 = 85,928.94 : x
  2. Step 2: Convert to fraction form
    144,068.47/198,840.51 = 85,928.94/x
  3. Step 3: Cross multiply
    144,068.47x = 198,840.51 × 85,928.94
  4. Step 4: Simplify right side
    144,068.47x = 17,086,154,253.36
  5. Step 5: Solve for x
    x = 17,086,154,253.36/144,068.47
  6. Step 6: Final answer
    x = 118,597.46

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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.