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Finding the Fourth Proportional to 238,783.84, 358,098.54 and 78,823.84

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Solution

The fourth proportional to 238,783.84, 358,098.54 and 78,823.84 is: 118,210.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,783.84 : 358,098.54 = 78,823.84 : x
  2. Step 2: Convert to fraction form
    238,783.84/358,098.54 = 78,823.84/x
  3. Step 3: Cross multiply
    238,783.84x = 358,098.54 × 78,823.84
  4. Step 4: Simplify right side
    238,783.84x = 28,226,702,021.19
  5. Step 5: Solve for x
    x = 28,226,702,021.19/238,783.84
  6. Step 6: Final answer
    x = 118,210.27

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1.5x scale

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.