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Finding the Fourth Proportional to 112,296.95, 154,970.01 and 61,309.68

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Solution

The fourth proportional to 112,296.95, 154,970.01 and 61,309.68 is: 84,607.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,296.95 : 154,970.01 = 61,309.68 : x
  2. Step 2: Convert to fraction form
    112,296.95/154,970.01 = 61,309.68/x
  3. Step 3: Cross multiply
    112,296.95x = 154,970.01 × 61,309.68
  4. Step 4: Simplify right side
    112,296.95x = 9,501,161,141.56
  5. Step 5: Solve for x
    x = 9,501,161,141.56/112,296.95
  6. Step 6: Final answer
    x = 84,607.47

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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.