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Finding the Fourth Proportional to 118,602.37, 163,771 and 84,714.81

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Solution

The fourth proportional to 118,602.37, 163,771 and 84,714.81 is: 116,977.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,602.37 : 163,771 = 84,714.81 : x
  2. Step 2: Convert to fraction form
    118,602.37/163,771 = 84,714.81/x
  3. Step 3: Cross multiply
    118,602.37x = 163,771 × 84,714.81
  4. Step 4: Simplify right side
    118,602.37x = 13,873,829,148.51
  5. Step 5: Solve for x
    x = 13,873,829,148.51/118,602.37
  6. Step 6: Final answer
    x = 116,977.67

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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.