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Finding the Fourth Proportional to 188,547.77, 260,196.90 and 103,670.30

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Solution

The fourth proportional to 188,547.77, 260,196.90 and 103,670.30 is: 143,065.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,547.77 : 260,196.90 = 103,670.30 : x
  2. Step 2: Convert to fraction form
    188,547.77/260,196.90 = 103,670.30/x
  3. Step 3: Cross multiply
    188,547.77x = 260,196.90 × 103,670.30
  4. Step 4: Simplify right side
    188,547.77x = 26,974,690,682.07
  5. Step 5: Solve for x
    x = 26,974,690,682.07/188,547.77
  6. Step 6: Final answer
    x = 143,065.55

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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.