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Finding the Fourth Proportional to 186,457.60, 257,210.40 and 110,991.52

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Solution

The fourth proportional to 186,457.60, 257,210.40 and 110,991.52 is: 153,108.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,457.60 : 257,210.40 = 110,991.52 : x
  2. Step 2: Convert to fraction form
    186,457.60/257,210.40 = 110,991.52/x
  3. Step 3: Cross multiply
    186,457.60x = 257,210.40 × 110,991.52
  4. Step 4: Simplify right side
    186,457.60x = 28,548,173,255.81
  5. Step 5: Solve for x
    x = 28,548,173,255.81/186,457.60
  6. Step 6: Final answer
    x = 153,108.12

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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.