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Finding the Fourth Proportional to 161,368.88, 222,675.80 and 93,390.84

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Solution

The fourth proportional to 161,368.88, 222,675.80 and 93,390.84 is: 128,871.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,368.88 : 222,675.80 = 93,390.84 : x
  2. Step 2: Convert to fraction form
    161,368.88/222,675.80 = 93,390.84/x
  3. Step 3: Cross multiply
    161,368.88x = 222,675.80 × 93,390.84
  4. Step 4: Simplify right side
    161,368.88x = 20,795,880,009.67
  5. Step 5: Solve for x
    x = 20,795,880,009.67/161,368.88
  6. Step 6: Final answer
    x = 128,871.69

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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.