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Finding the Fourth Proportional to 169,697.72, 254,547.18 and 57,378.86

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Solution

The fourth proportional to 169,697.72, 254,547.18 and 57,378.86 is: 86,068.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,697.72 : 254,547.18 = 57,378.86 : x
  2. Step 2: Convert to fraction form
    169,697.72/254,547.18 = 57,378.86/x
  3. Step 3: Cross multiply
    169,697.72x = 254,547.18 × 57,378.86
  4. Step 4: Simplify right side
    169,697.72x = 14,605,627,640.98
  5. Step 5: Solve for x
    x = 14,605,627,640.98/169,697.72
  6. Step 6: Final answer
    x = 86,068.50

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1.5x scale

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.