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Finding the Fourth Proportional to 210,048.52, 314,970.44 and 69,759.76

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Solution

The fourth proportional to 210,048.52, 314,970.44 and 69,759.76 is: 104,605.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,048.52 : 314,970.44 = 69,759.76 : x
  2. Step 2: Convert to fraction form
    210,048.52/314,970.44 = 69,759.76/x
  3. Step 3: Cross multiply
    210,048.52x = 314,970.44 × 69,759.76
  4. Step 4: Simplify right side
    210,048.52x = 21,972,262,301.49
  5. Step 5: Solve for x
    x = 21,972,262,301.49/210,048.52
  6. Step 6: Final answer
    x = 104,605.65

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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.