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Finding the Fourth Proportional to 261,686.64, 360,764.76 and 176,669.04

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Solution

The fourth proportional to 261,686.64, 360,764.76 and 176,669.04 is: 243,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,686.64 : 360,764.76 = 176,669.04 : x
  2. Step 2: Convert to fraction form
    261,686.64/360,764.76 = 176,669.04/x
  3. Step 3: Cross multiply
    261,686.64x = 360,764.76 × 176,669.04
  4. Step 4: Simplify right side
    261,686.64x = 63,735,963,815.03
  5. Step 5: Solve for x
    x = 63,735,963,815.03/261,686.64
  6. Step 6: Final answer
    x = 243,558.34

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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.