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Finding the Fourth Proportional to 118,607.84, 163,678.73 and 64,893.07

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Solution

The fourth proportional to 118,607.84, 163,678.73 and 64,893.07 is: 89,552.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,607.84 : 163,678.73 = 64,893.07 : x
  2. Step 2: Convert to fraction form
    118,607.84/163,678.73 = 64,893.07/x
  3. Step 3: Cross multiply
    118,607.84x = 163,678.73 × 64,893.07
  4. Step 4: Simplify right side
    118,607.84x = 10,621,615,623.88
  5. Step 5: Solve for x
    x = 10,621,615,623.88/118,607.84
  6. Step 6: Final answer
    x = 89,552.39

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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.