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Finding the Fourth Proportional to 157,364.94, 235,811.70 and 68,570.32

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Solution

The fourth proportional to 157,364.94, 235,811.70 and 68,570.32 is: 102,752.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,364.94 : 235,811.70 = 68,570.32 : x
  2. Step 2: Convert to fraction form
    157,364.94/235,811.70 = 68,570.32/x
  3. Step 3: Cross multiply
    157,364.94x = 235,811.70 × 68,570.32
  4. Step 4: Simplify right side
    157,364.94x = 16,169,683,728.74
  5. Step 5: Solve for x
    x = 16,169,683,728.74/157,364.94
  6. Step 6: Final answer
    x = 102,752.77

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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.