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Finding the Fourth Proportional to 123,263.53, 170,111.68 and 69,528.94

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Solution

The fourth proportional to 123,263.53, 170,111.68 and 69,528.94 is: 95,954.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,263.53 : 170,111.68 = 69,528.94 : x
  2. Step 2: Convert to fraction form
    123,263.53/170,111.68 = 69,528.94/x
  3. Step 3: Cross multiply
    123,263.53x = 170,111.68 × 69,528.94
  4. Step 4: Simplify right side
    123,263.53x = 11,827,684,192.92
  5. Step 5: Solve for x
    x = 11,827,684,192.92/123,263.53
  6. Step 6: Final answer
    x = 95,954.45

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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.