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Finding the Fourth Proportional to 105,063.06, 144,975.99 and 64,794.93

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Solution

The fourth proportional to 105,063.06, 144,975.99 and 64,794.93 is: 89,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,063.06 : 144,975.99 = 64,794.93 : x
  2. Step 2: Convert to fraction form
    105,063.06/144,975.99 = 64,794.93/x
  3. Step 3: Cross multiply
    105,063.06x = 144,975.99 × 64,794.93
  4. Step 4: Simplify right side
    105,063.06x = 9,393,709,123.73
  5. Step 5: Solve for x
    x = 9,393,709,123.73/105,063.06
  6. Step 6: Final answer
    x = 89,410.20

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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.