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Finding the Fourth Proportional to 160,590.95, 221,719.50 and 103,256.02

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Solution

The fourth proportional to 160,590.95, 221,719.50 and 103,256.02 is: 142,560.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,590.95 : 221,719.50 = 103,256.02 : x
  2. Step 2: Convert to fraction form
    160,590.95/221,719.50 = 103,256.02/x
  3. Step 3: Cross multiply
    160,590.95x = 221,719.50 × 103,256.02
  4. Step 4: Simplify right side
    160,590.95x = 22,893,871,501.51
  5. Step 5: Solve for x
    x = 22,893,871,501.51/160,590.95
  6. Step 6: Final answer
    x = 142,560.16

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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.