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Finding the Fourth Proportional to 66,018.16, 99,061.28 and 43,846.88

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Solution

The fourth proportional to 66,018.16, 99,061.28 and 43,846.88 is: 65,792.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,018.16 : 99,061.28 = 43,846.88 : x
  2. Step 2: Convert to fraction form
    66,018.16/99,061.28 = 43,846.88/x
  3. Step 3: Cross multiply
    66,018.16x = 99,061.28 × 43,846.88
  4. Step 4: Simplify right side
    66,018.16x = 4,343,528,056.81
  5. Step 5: Solve for x
    x = 4,343,528,056.81/66,018.16
  6. Step 6: Final answer
    x = 65,792.93

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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.