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Finding the Fourth Proportional to 190,547.44, 285,821.16 and 65,888.44

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Solution

The fourth proportional to 190,547.44, 285,821.16 and 65,888.44 is: 98,832.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,547.44 : 285,821.16 = 65,888.44 : x
  2. Step 2: Convert to fraction form
    190,547.44/285,821.16 = 65,888.44/x
  3. Step 3: Cross multiply
    190,547.44x = 285,821.16 × 65,888.44
  4. Step 4: Simplify right side
    190,547.44x = 18,832,309,389.76
  5. Step 5: Solve for x
    x = 18,832,309,389.76/190,547.44
  6. Step 6: Final answer
    x = 98,832.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.