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Finding the Fourth Proportional to 170,803,686.80, 256,238,707.80 and 73,759,206.80

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Solution

The fourth proportional to 170,803,686.80, 256,238,707.80 and 73,759,206.80 is: 110,653,137.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,803,686.80 : 256,238,707.80 = 73,759,206.80 : x
  2. Step 2: Convert to fraction form
    170,803,686.80/256,238,707.80 = 73,759,206.80/x
  3. Step 3: Cross multiply
    170,803,686.80x = 256,238,707.80 × 73,759,206.80
  4. Step 4: Simplify right side
    170,803,686.80x = 18,899,963,838,784,972
  5. Step 5: Solve for x
    x = 18,899,963,838,784,972/170,803,686.80
  6. Step 6: Final answer
    x = 110,653,137.49

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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.