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Finding the Fourth Proportional to 112,159.95, 154,776.44 and 61,858.95

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Solution

The fourth proportional to 112,159.95, 154,776.44 and 61,858.95 is: 85,362.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,159.95 : 154,776.44 = 61,858.95 : x
  2. Step 2: Convert to fraction form
    112,159.95/154,776.44 = 61,858.95/x
  3. Step 3: Cross multiply
    112,159.95x = 154,776.44 × 61,858.95
  4. Step 4: Simplify right side
    112,159.95x = 9,574,307,753.84
  5. Step 5: Solve for x
    x = 9,574,307,753.84/112,159.95
  6. Step 6: Final answer
    x = 85,362.98

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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.