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Finding the Fourth Proportional to 74,547.56, 102,552.54 and 65,433.44

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Solution

The fourth proportional to 74,547.56, 102,552.54 and 65,433.44 is: 90,014.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,547.56 : 102,552.54 = 65,433.44 : x
  2. Step 2: Convert to fraction form
    74,547.56/102,552.54 = 65,433.44/x
  3. Step 3: Cross multiply
    74,547.56x = 102,552.54 × 65,433.44
  4. Step 4: Simplify right side
    74,547.56x = 6,710,365,472.94
  5. Step 5: Solve for x
    x = 6,710,365,472.94/74,547.56
  6. Step 6: Final answer
    x = 90,014.56

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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.