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Finding the Fourth Proportional to 153,792.69, 212,101.38 and 100,058.10

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Solution

The fourth proportional to 153,792.69, 212,101.38 and 100,058.10 is: 137,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,792.69 : 212,101.38 = 100,058.10 : x
  2. Step 2: Convert to fraction form
    153,792.69/212,101.38 = 100,058.10/x
  3. Step 3: Cross multiply
    153,792.69x = 212,101.38 × 100,058.10
  4. Step 4: Simplify right side
    153,792.69x = 21,222,461,090.18
  5. Step 5: Solve for x
    x = 21,222,461,090.18/153,792.69
  6. Step 6: Final answer
    x = 137,993.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.