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Finding the Fourth Proportional to 92,886.95, 128,237.13 and 61,148.12

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Solution

The fourth proportional to 92,886.95, 128,237.13 and 61,148.12 is: 84,419.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,886.95 : 128,237.13 = 61,148.12 : x
  2. Step 2: Convert to fraction form
    92,886.95/128,237.13 = 61,148.12/x
  3. Step 3: Cross multiply
    92,886.95x = 128,237.13 × 61,148.12
  4. Step 4: Simplify right side
    92,886.95x = 7,841,458,772.51
  5. Step 5: Solve for x
    x = 7,841,458,772.51/92,886.95
  6. Step 6: Final answer
    x = 84,419.38

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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.