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Finding the Fourth Proportional to 235,533.62, 325,038.96 and 128,103.93

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Solution

The fourth proportional to 235,533.62, 325,038.96 and 128,103.93 is: 176,784.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,533.62 : 325,038.96 = 128,103.93 : x
  2. Step 2: Convert to fraction form
    235,533.62/325,038.96 = 128,103.93/x
  3. Step 3: Cross multiply
    235,533.62x = 325,038.96 × 128,103.93
  4. Step 4: Simplify right side
    235,533.62x = 41,638,768,179.11
  5. Step 5: Solve for x
    x = 41,638,768,179.11/235,533.62
  6. Step 6: Final answer
    x = 176,784.82

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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.