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Finding the Fourth Proportional to 212,547.57, 318,863.40 and 60,746.01

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Solution

The fourth proportional to 212,547.57, 318,863.40 and 60,746.01 is: 91,131.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,547.57 : 318,863.40 = 60,746.01 : x
  2. Step 2: Convert to fraction form
    212,547.57/318,863.40 = 60,746.01/x
  3. Step 3: Cross multiply
    212,547.57x = 318,863.40 × 60,746.01
  4. Step 4: Simplify right side
    212,547.57x = 19,369,679,285.03
  5. Step 5: Solve for x
    x = 19,369,679,285.03/212,547.57
  6. Step 6: Final answer
    x = 91,131.03

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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.