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Finding the Fourth Proportional to 153,798.23, 212,256.23 and 93,355.02

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Solution

The fourth proportional to 153,798.23, 212,256.23 and 93,355.02 is: 128,838.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,798.23 : 212,256.23 = 93,355.02 : x
  2. Step 2: Convert to fraction form
    153,798.23/212,256.23 = 93,355.02/x
  3. Step 3: Cross multiply
    153,798.23x = 212,256.23 × 93,355.02
  4. Step 4: Simplify right side
    153,798.23x = 19,815,184,130.00
  5. Step 5: Solve for x
    x = 19,815,184,130.00/153,798.23
  6. Step 6: Final answer
    x = 128,838.83

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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.