Finding the Fourth Proportional to 158,829.54, 219,187.26 and 87,216
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Solution
The fourth proportional to 158,829.54, 219,187.26 and 87,216 is: 120,359.45
Step by Step Solution
- Step 1: Write the proportion equation
158,829.54 : 219,187.26 = 87,216 : x - Step 2: Convert to fraction form
158,829.54/219,187.26 = 87,216/x - Step 3: Cross multiply
158,829.54x = 219,187.26 × 87,216 - Step 4: Simplify right side
158,829.54x = 19,116,636,068.16 - Step 5: Solve for x
x = 19,116,636,068.16/158,829.54 - Step 6: Final answer
x = 120,359.45
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.