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Finding the Fourth Proportional to 105,671,569.80, 158,656,653.90 and 65,360,785.80

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Solution

The fourth proportional to 105,671,569.80, 158,656,653.90 and 65,360,785.80 is: 98,133,524.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,671,569.80 : 158,656,653.90 = 65,360,785.80 : x
  2. Step 2: Convert to fraction form
    105,671,569.80/158,656,653.90 = 65,360,785.80/x
  3. Step 3: Cross multiply
    105,671,569.80x = 158,656,653.90 × 65,360,785.80
  4. Step 4: Simplify right side
    105,671,569.80x = 10,369,923,571,302,634
  5. Step 5: Solve for x
    x = 10,369,923,571,302,634/105,671,569.80
  6. Step 6: Final answer
    x = 98,133,524.38

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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.