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Finding the Fourth Proportional to 112,153.58, 154,767.65 and 61,852.58

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Solution

The fourth proportional to 112,153.58, 154,767.65 and 61,852.58 is: 85,354.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,153.58 : 154,767.65 = 61,852.58 : x
  2. Step 2: Convert to fraction form
    112,153.58/154,767.65 = 61,852.58/x
  3. Step 3: Cross multiply
    112,153.58x = 154,767.65 × 61,852.58
  4. Step 4: Simplify right side
    112,153.58x = 9,572,777,950.31
  5. Step 5: Solve for x
    x = 9,572,777,950.31/112,153.58
  6. Step 6: Final answer
    x = 85,354.19

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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.