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Finding the Fourth Proportional to 305,349.42, 458,055.60 and 105,669.51

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Solution

The fourth proportional to 305,349.42, 458,055.60 and 105,669.51 is: 158,515.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,349.42 : 458,055.60 = 105,669.51 : x
  2. Step 2: Convert to fraction form
    305,349.42/458,055.60 = 105,669.51/x
  3. Step 3: Cross multiply
    305,349.42x = 458,055.60 × 105,669.51
  4. Step 4: Simplify right side
    305,349.42x = 48,402,510,804.76
  5. Step 5: Solve for x
    x = 48,402,510,804.76/305,349.42
  6. Step 6: Final answer
    x = 158,515.16

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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.