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Finding the Fourth Proportional to 92,923.84, 128,236.45 and 50,482.40

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Solution

The fourth proportional to 92,923.84, 128,236.45 and 50,482.40 is: 69,666.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,923.84 : 128,236.45 = 50,482.40 : x
  2. Step 2: Convert to fraction form
    92,923.84/128,236.45 = 50,482.40/x
  3. Step 3: Cross multiply
    92,923.84x = 128,236.45 × 50,482.40
  4. Step 4: Simplify right side
    92,923.84x = 6,473,683,763.48
  5. Step 5: Solve for x
    x = 6,473,683,763.48/92,923.84
  6. Step 6: Final answer
    x = 69,666.56

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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.