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Finding the Fourth Proportional to 157,205.42, 216,971.78 and 92,670.81

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Solution

The fourth proportional to 157,205.42, 216,971.78 and 92,670.81 is: 127,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,205.42 : 216,971.78 = 92,670.81 : x
  2. Step 2: Convert to fraction form
    157,205.42/216,971.78 = 92,670.81/x
  3. Step 3: Cross multiply
    157,205.42x = 216,971.78 × 92,670.81
  4. Step 4: Simplify right side
    157,205.42x = 20,106,950,599.74
  5. Step 5: Solve for x
    x = 20,106,950,599.74/157,205.42
  6. Step 6: Final answer
    x = 127,902.40

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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.